In 2014, his doctors came across an exoskeleton suit that got him on his feet again. The suit is a wearable robot, called an EksoGT and made by Ekso Bionics.

Rose stood for the playing of The Star-Spangled Banner in the starting grid, next to driver Graham Rahal. One of Rahal's sponsors is United Rentals, which has been raising money for a non-profit called SoldierStrong.

The organization uses the funds to give the exoskeleton to VA hospitals across the country for therapy with paralyzed veterans.

Standing before the start of the Indianapolis 500 was pretty special for Rose. "Right after I was injured, I'd go to things and it'd be like, 'please stand for the national anthem,' and I'd think, I wish I could do that," he said. "To do that on a huge occasion like today is awesome."